Self-dumping bailer



Sept. ze, 195o Filed Feb. 24. 1947 2 Sheets-Sheet 1 l0 Fi .3.

\ f Ilnllllllllll Inventar Franklin E. Bell *lill F. E. BELLSELF-DUMPING BAILER sept. 26, 195o 'Fil-ed Feb. 24, 1947 2 Sheets-Sheet2 Inventor Frank/n E. Bell By www Patented Sept. 26, 1950 UNITED shwrsPATENT. oFFIcl-v sELE-DUMPINGAnJER Franklin E.'Bell, Duncan, I-kla.VApplication February 24, 1947., ser'ialNo. 730,228'

; n i (c1. 16s-ne) The present invention relates to new and usefulimprovements in bailers for oil or other drilled wells and moreparticularly to a self-dumping bailer whereby plastics, slurry or otherliquid may be discharged at a given depth in a bored hole for use inplugging wells and for other purposes where abailer of this character isemployed. .y

An important object of the present invention is to provide aself-dumping `bailer which eliminates the necessity of providing abridge or seat onwhich the valve of the lbailer is tripped. v

A further vobject of the invention is to'provide a spring operatedVvalve normally held in a 'closed position by means including -afrangible hanger member adapted to be disintegrated by an explosivecharge encased therein and providing electricallyl controlled ringmeansfor the charge whereby the bailer may be emptied by remote controlfrom a point at the top of the well.

A still further object is to provide a device of this character ofsimple and practical construction, which is eiiicient and reliable inoperation, relatively inexpensive to manufacture and otherwise welladapted for the purposesior which Athe same is intended. I y

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming part hereof, wherein,like numerals refer to like parts throughout, and Ain which:

Figure 1 is a side elevational view of the bailer shown in position in awell casing, the latter being shown in section.

Figure 2 is a vertical sectional view of the bailer.

Fi-gure 3 is an enlarged fragmentary vertical sectional view taken on aline 3-3 of Figure 2, and showing the frangible hanger for holding thevalve in a closed position.

Figure 4 is an enlarged fragmentary sectional View through the valvetaken on a line 4--4 of Figure 2.

Figure 5 is a transverse sectional view taken on a line 5-5 of Figure 4,and,v

Figure 6 is an enlarged vertical sectional View of the frangible hangershowing the explosive lcharge therein.

Referring now to the drawings in detail and rst wherein for the purposeof illustration I have disclosed a preferred embodiment of theinvention, the numeral 5 designates the bailer generally which includesa pipe section 6 having a bail 'I connected at its upper ends by a pipeunion Vl() l.

portion of the sleeve II, the valve seat facing 2 8, the bailer beinglowered into a well casing 9 by means of a sand line or cable IUattached to the bail 'L l The pipe Eiconstitutes the Abody of -thebailer 1 adapted to contain a suitable liquid to be placed in the casingat a desired depth and to the lower end of the pipe Bis attached asleeve IVI by means of a pipe union I2, the lower end having a cap I3attached theretoby a pipe union I4.

A valve seat I5 is suitably ,carried in the upper downwardlyfand closedby a valve I6 in a manner to be more fully hereinafter described. Thesleeve II is formed with periorations or discharge ports I'I closed byan inner sleeve I8 slidably mounted in the sleeve II. The inner sleeveI8 is connected to the valve I6 by a link I9 and a coil spring 29 isconnected at its upper end to the inner sleeve I8 by means of a link 2|while the lower end of the spring is'connected to the bottom of the capI3 in a suitable manner.

A cable 22 is attached at its lower end to the valve I6 and extendsupwardly through the pipe 6 with its upper end provided with a link 23attachedrto an-.eye 24 on the bottom of a frangible casing 25, theYcasing being constructed of upper and lower' threadedly connectedsections 29 and 2l. f

An eye 28 is carried by the upper section 25 of the casing and ,isconnected by a link 29 to the lower end of `a toothed bar 30 slidablymounted in a guide 3I carried within the lbail I, the bar being securedin vertically adjusted position by means of a dog 32 engaging the teethof the bar and pivoted to an ear 33 on the guide 3l.

By adjusting the bar 30 in the guide 3l the valve I6 may be held tightlyclosed against the valve seat I5 through the connection of the bar withthe valve by the cable 22 and casing 25 which functions as a frangiblehanger for the cable.

A loose cable 34 connects the link 23 directly v to the link 29by-passing the casing 25.

The casing. 25 holds a suitable explosive charge 35 contained in a bag33 and through which an electric wire 3l extends. The lower end of thewire 31 is grounded to the bottomof the casingV An electric wire 42leads from the contact 49 through an insulated waterproof nipp1e43 inthe top of the casing to a cable 44 in which the sandv line l is alsocarried for connecting the wire 42 to a suitable source of current.

The wire 3l in the charge 35 is of suitable resistance to become hotwhen current is passed therethrough whereby to set oi the charge.

Accordingly, in the operation of the device, the body 6 of the bailer islled with a suitable liquid for its intended purpose and the bailer islowered in the well casing 9- to a desired depth and the charge 35 setoff whereupon the casing 25 will be broken, releasing cable 22 and valveI6 which is moved downwardly into its open position by spring 2B. Thespring also lowers the inner sleeve or Valve I8 to uncover or open theport I1 and the liquid from the bailer is then discharged into the well.The loose connecting cable 34 between cable 22 and the bar 30facilitates closing the valves I6 and I3 and connecting ,a freshreleasing charge and casing 25 in position for subsequent use of thedevice. A Y

In View of the foregoing description taken in conjunction with theaccompanying drawings it is believed that a clear understanding of theconstruction, operation and advantages ofthe device will be quiteapparent to those skilled in this art. A more detailed description isaccordingly deemed unnecessary. i

It is to be understood, however, that even though there is herein shownand described a preferred embodiment of the invention the same issusceptible to certain changes fully' comprehended by the spirit of theinvention as'herein described and the scope of the appended claims.

Having described my invention, what is claimed as new is:

l. A bailer for wells comprising a hollow body having a discharge porttherein, means for lowering said body into a well, a valve in said bodyadapted to be opened and closed to control discharge from said port,spring means in said body for opening said valve, a irangible hangermember suspended from said body, means connecting said valve andmemberto hold said valve closed in opposition to said spring means until saidmember is fractured, and remote control means for 'fracturing saidmember-at will'.` jl

2. A bailer for wells comprising a hollow body having a discharge porttherein, means for lowering said body into a well, a valve in said bodyadapted to be opened and closed to control discharge from said port,spring means in said body for opening said valve, means for holding saidvalve closed in oppositionto said spring comprising a frangible hangermember connected to said body, and a cable attached to said member andto said valve and adapted to be released when said member is fracturedto permit said valve to be opened by said spring means, and remotecontrol means for fracturing said member at will.

v3. A bailer for wells comprising a hollow body having a discharge porttherein, means for lowering said body into a Well, a valve in said bodyadapted to be opened and closed to control discharge from said port,spring means in said body for opening said valve, means for holding saidvalve closed in opposition to said spring comprising a frangible hangermember, means suspending said member fromv said body, a cable attachedto said member and to said valve and adapted to be released when saidmember is fractured to permit said valve to be opened by said springmeans, remote control means for fracturing said member at will, saidmeans suspending said member including a slidably mounted rack and a dogfor said rack operative for adjusting said member to tighten said cableand tightly close the valve.

4. A bailer for wells ycomprising a hollow body having a discharge porttherein, means for lowering said body into a well, a valve in said bodyadapted to be opened and closed to control discharge from said port,spring means in said body for opening said valve, means in said body forholding said valve closed in opposition to said spring means comprisinga frangible member suspended from said body and adapted to be fractured,exible means connecting said valve to said member to hold said valveclosed until said member is fractured, said flexible means beingreleased by fracture of said member to permit said valve to open, aslack cable connection between said flexible member and body by-passingsaid frangible member and connecting said flexible member when releasedto said body, and remote -control means for fracturing said member.

FRANKLIN E. BELL.

REFERENCES CITED The following references are of record in the i'lle ofthis patent:

UNITED STATES PATENTS Number Name Date 1,450,485 Cousins Apr. 3, 19232,098,494 Grant Nov. 9, 1937 2,302,647 Temple Nov. 17, 1942

